Optical diffuser with IR and/or UV blocking coating
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United States of America Patent
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Aug 10, 2010
Grant Date -
Mar 22, 2007
app pub date -
Jan 6, 2006
filing date -
Sep 20, 2005
priority date (Note) -
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Abstract
A diffuser is provided in an illumination system, where the diffuser is capable of blocking significant amounts of infrared (IR) and/or ultraviolet (UV) radiation. In certain example embodiments of this invention, the diffuser includes a glass substrate which supports an IR/UV coating(s) that blocks significant amounts of IR and/or UV radiation thereby reducing the amount of IR and/or UV radiation which can makes its way through the diffuser. In certain example embodiments, the coating may include particulate in a frit matrix so that the coating may both diffuse visible light and perform IR and/or UV blocking.
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